UX Software Engineer

Charles River Analytics, a GRVTY company, creates solutions and technology to tackle the world’s most challenging problems. Our team of technological entrepreneurs works together to push at the forefront of enhanced AI, robotics, smart sensing, and human-centered computing. The resulting research and development help to continuously advance government programs and discover new possibilities in the commercial marketplace. At Charles River, we take great pride in our success at attracting and retaining the most talented and creative problem-solvers in our field. 

Now as part of GRVTY, we offer the same trusted capabilities with increased organizational depth and expanded capacity across mission-critical national security domains. Are you ready to accelerate our mission-focused innovations? We’d love to hear from you!

We are looking for an outstanding software engineer candidate with hands-on experience developing responsive user-facing applications with JavaScript and potentially other frameworks. These applications often require the development of scalable back-end services to support business logic so experience developing and integrating with a back-end is required. You should possess expertise or experience in a variety of technologies, as expressed below, and also have exposure to Agile/Scrum development methodologies. In the first year, we expect you to contribute to two or more production-quality user-facing applications by implementing features, fixing bugs, and taking ownership of the quality of the software. You will be working closely with a senior engineer who will define the requirements, wireframes, and expectations, while also providing mentorship and learning opportunities.

What you will do

• Contribute to engineering teams (code development, code reviews, task understanding and refinement, process improvement, etc.) across projects that range in scope and complexity


• Work with Principal Investigators to understand and prioritize technical requirements and track them effectively in GitLab


• Understand and apply the entire software development lifecycle (requirements management, development, merge requests, testing, deployment) to projects


• Develop responsive user-facing applications, whether that be with JavaScript, Unity, or other relevant frameworks


• Participate in daily stand-ups and sprint planning sessions to communicate progress, identify blockers, and collaborate with cross-functional team members in an Agile/Scrum environment


• Document technical implementations and API specifications using tools like Docusaurus and Markdown to support knowledge sharing and maintan clear communication with team members and stakeholders

The technologies we use (familiarity with a majority is desired)

• API/Data Services: HTTP, GraphQL, REST, Swagger, ActiveMQ, gRPC, WebSockets


• Back-end: NodeJS, Python, C#, Java Spring


• Cloud/Virtualization: Kubernetes, Docker, AWS EC2, VM Ware


• Databases: Neo4j, Postgres, MongoDB, ElasticSearch, Redis, MySQL


• Development workflow: Webpack, grunt, gulp, npm, yarn, gradle.


• Documentation: Sphinx, Docusaurus, JS Doc


• Front-end: React, modern Javascript (es6, require, etc.), HTML5, CSS3, Unity/C#, Unreal


• Issue Tracking: GitLab, JIRA


• Operating Systems: Windows, Linux (RHEL, Ubuntu), OSX


• Testing: Jasmine, Mocha, Jest, TapeJS, Protractor, NUnit, Storybook


• Version Control/CI-CD: GitLab


• Web Mapping APIs: Cesium, GeoJson, Leaflet


• XR Hardware: Oculus Quest, Hololens, HTC Vive or other Steam VR HMDs

What you need

• Ability to work in a Hybrid (60%, 3x days per week) onsite capacity in Cambridge, Massachusetts


• Bachelor’s degree in computer science, engineering, or related field, or equivalent work experience


• 2+ years of professional software development experience, with exposure to the full software development lifecycle


• 5+ years of demonstrated experience preferred. Senior level engineering candidates will also be considered


• Willingness to occasionally travel to support customer briefings and integration/test events


• U.S. Citizenship

Salary Range

$100,000 - $200,000 

The above projected salary range is an estimate (early to senior level) based on the internal job level(s) for which this role is being considered. The final salary will be decided after careful evaluation of the individual's work experience, education, and overall qualifications. This range does not include the substantial total rewards, as listed below, that you will also be eligible for as an employee at Charles River Analytics.

Why Charles River?

Charles River Analytics thrives on collaboration and values each team member. We offer competitive compensation plus bonus and retirement contribution, with an attractive benefits package including 100% employer-paid medical and dental insurance, as well as vision, life, and disability insurance, paid maternity/paternity leave, tuition reimbursement, monthly gym allowance, free parking, generous paid time off, and a casual environment. We offer tremendous flexibility and value work-life balance. We are also accessible by public transportation. Charles River became an employee-owned company in 2012, to set the stage for the next-generation of innovation, service, and growth in R&D. As we entered 2026, we joined forces with GRVTY, gaining the scale and capacity to transition, field, and sustain our innovations faster and more effectively than ever before.